Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-03-22
Class.Quant.Grav.24:S155-S170,2007
Astronomy and Astrophysics
Astrophysics
15 pages, 7 figures, accepted for publication in Classical and Quantum Gravity, special issue on the New Frontiers in Numerica
Scientific paper
10.1088/0264-9381/24/12/S11
We present a new general relativistic hydrodynamics code specifically designed to study magneto-rotational, relativistic, stellar core collapse. The code is an extension of an existing (and thoroughly tested) hydrodynamics code, which has been applied in the recent past to study relativistic rotational core collapse. It is based on the conformally-flat approximation of Einstein's field equations and conservative formulations for the magneto-hydrodynamics equations. As a first step towards magneto-rotational core collapse simulations the code assumes a passive (test) magnetic field. The paper is focused on the description of the technical details of the numerical implementation, with emphasis on the magnetic field module. A number of code tests are presented and discussed, along with a representative core collapse simulation.
Cerdá-Durán Pablo
Font José A.
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